Lethal Vapors + Mycosynth Lattice + Null Rod

B identity

Commander legal

The 3 combo pieces

• Lethal Vapors
• Mycosynth Lattice
• Null Rod

How to execute it

1. Whenever a creature enters the battlefield, Lethal Vapors triggers, destroying that creature.
2. Because Null Rod prevents Lethal Vapors's activated ability from being activated, it cannot be destroyed due to its ability.

What the combo produces

• Activated abilities can't be activated
• Destroy all creatures that enter the battlefield
• Lock
• Mass Land Denial
• Nobody can activate the abilites of any permanent on the battlefield